CVE-2026-40252

[CVE catalog]

FastGPT is an AI Agent building platform. Prior to 4.14.10.4, Broken Access Control vulnerability (IDOR/BOLA) allows any authenticated team to access and execute applications belonging to other teams by supplying a foreign appId. While the API correctly validates the team token, it does not verify that the requested application belongs to the authenticated team. This leads to cross-tenant data exposure and unauthorized execution of private AI workflows. This vulnerability is fixed in 4.14.10.4.

Severity

Medium · CVSS 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

Apr 10, 2026, 9:16:27 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.34% · Oct 27, 2026

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  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "fastgpt",
      "ecosystem": "cpe",
      "fixed_version": "4.14.10.4"
    },
    {
      "name": "fastgpt",
      "ranges": [
        {
          "fixed": "4.14.10.4",
          "introduced": "",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "4.14.10.4",
      "provider_record_id": "NVD-CVE-2026-40252"
    }
  ]
}